Improved frequency-dependent transient transmission line model

Abstract

Scope of this thesis is the development of a frequency-dependent multiphase power transmission line transient model, which is based on the generalized nodal analysis and is suitable for transient simulations both in frequency- and time-domain. Initially, modal analysis is presented, which is a valuable tool for the decoupling and further solution of the telegrapher’s equations. Under this framework, a new method is proposed for the calculation of frequency-dependent propagation characteristics as smooth functions of frequency. The proposed method is highly accurate, robust, numerically efficient and applicable to all types of transmission line configurations. Next, the natural frequencies of power transmission lines and their excitation in transients or under high-frequency steady-state conditions are calculated. A new technique is proposed for the calculation of natural frequencies, which is generalized and applicable to any type of transmission lines, taking fully into account the ci ...
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DOI
10.12681/eadd/36699
Handle URL
http://hdl.handle.net/10442/hedi/36699
ND
36699
Alternative title
Βελτιωμένη μοντελοποίηση εξαρτώμενη από τη συχνότητα της μεταβατικής συμπεριφοράς γραμμών μεταφοράς ηλεκτρικής ενέργειας
Author
Chrysochos, Andreas (Father's name: Ioannis)
Date
2015
Degree Grantor
Aristotle University Of Thessaloniki (AUTH)
Committee members
Παπαγιάννης Γρηγόριος
Λαμπρίδης Δημήτριος
Μικρόπουλος Παντελεήμων
Θεοδουλίδης Θεόδωρος
Δημουλιάς Χαράλαμπος
Ανδρέου Γεώργιος
Παπαδόπουλος Θεόφιλος
Discipline
Engineering and TechnologyElectrical Engineering, Electronic Engineering, Information Engineering
Keywords
Power transmission lines; Power cables; Electromagnetic transients; Frequency-dependent modeling; Frequency-domain; Time-domain
Country
Greece
Language
Greek
Description
xxii, 163 σ., tbls., fig., ind.
Rights and terms of use
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